Yuav ua li cas xaiv tus qauv tsim nyog transistor

Kev faib tawm yooj yim
Nws yog ib qho tsim nyog yuav tsum nkag siab txog qhov kev faib tawm ntawm cov transistors ua ntej xaiv cov qauv transistor tsim nyog. Transistors feem ntau muab faib ua pawg hauv qab no:

Tom ntej: Bipolar Transistor (BJT)
NPN hom: feem ntau siv hauv amplification thiab switching applications.
PNP hom: kuj siv rau amplification thiab switching, tab sis nrog opposite polarity rau NPN hom.

Field Effect Transistor (FET)
Junction Field Effect Transistor (JFET): Tsim nyog rau cov ntawv thov impedance siab.
Hlau oxide semiconductor field-effect transistor (MOSFET): muab faib ua N-channel thiab P-channel, dav siv nyob rau hauv kev hloov thiab amplification circuits.

Rwb thaiv tsev Gate Bipolar Transistor (IGBT)
Ua ke qhov zoo ntawm BJT thiab MOSFET, nws yog tsim rau high-voltage thiab high tam sim no daim ntaub ntawv, xws li inverters thiab hluav taws xob tsheb.

Yam tseem ceeb hauv kev xaiv cov qauv transistor
Thaum xaiv cov qauv transistor, cov hauv qab no tseem ceeb yuav tsum tau txiav txim siab ua tiav:

Ua haujlwm voltage thiab tam sim no
Txiav txim siab qhov kev khiav hauj lwm voltage thiab tam sim no ntau yam ntawm Circuit Court, thiab xaiv cov qauv transistor tsim nyog raws li qhov xav tau tiag tiag. Cov qauv sib txawv ntawm cov transistors muaj qhov sib txawv ntawm cov ntsuas hluav taws xob thiab cov khoom siv tam sim no, thiab nws yuav tsum tau ua kom ntseeg tau tias cov qauv xaiv tau raws li qhov yuav tsum tau ua ntawm lub voj voog.

Lub zog dissipation
Lub zog dissipation muaj peev xwm ntawm transistors yog ib qho tseem ceeb qhia rau kev xaiv. Nws yog ib qho tsim nyog los xam qhov tsim nyog transistor fais fab theem raws li qhov siab tshaj plaws lub zog dissipation hauv Circuit Court kom ntseeg tau tias transistor tsis overheat thaum lub sijhawm ua haujlwm.

Hloov ceev
Nyob rau hauv high-speed hloov daim ntawv thov, xws li hloov cov khoom siv hluav taws xob thiab cov ntaub ntawv xa mus ceev, qhov hloov ceev ntawm transistors yog qhov tseem ceeb heev. Xaiv cov qauv transistor nrog kev hloov pauv siab dua tuaj yeem txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm lub voj voog.

Nce thiab input impedance
Rau kev nthuav dav circuits, nws yog ib qho tsim nyog yuav tau xav txog qhov nce tam sim no (hFE) thiab input impedance ntawm transistor. Ntau hom transistors muaj qhov sib txawv tseem ceeb hauv kev nce thiab input impedance, thiab xaiv cov qauv tsim nyog tuaj yeem ua kom zoo dua qhov kev ua tau zoo ntawm lub voj voog.

Ntim hom
Xaiv qhov tsim nyog transistor ntim hom raws li qhov tseeb layout thiab kub dissipation yuav tsum tau ntawm lub Circuit Court. Hom ntim khoom muaj xws li TO-92, TO-220, SOT-23, thiab lwm yam. Cov ntim ntim sib txawv muaj qhov sib txawv ntawm qhov ntim, cua sov dissipation, thiab cov txheej txheem installation.

Kev xaiv ntawm transistors rau ntau daim ntawv thov scenarios
Amplifying Circuit Court
Thaum xaiv ib lub transistor nyob rau hauv lub amplifier Circuit Court, nws yog ib qho tseem ceeb uas yuav tau xav txog nws qhov nce thiab zaus teb. Rau lub suab amplification circuits, siab nce NPN lossis PNP BJTs xws li 2N2222 lossis 2N3906 tuaj yeem xaiv. Rau RF amplification circuits, high-frequency transistors xws li BF199 lossis 2N5179 yuav tsum tau xaiv.

Hloov Circuit Court
Hauv kev hloov pauv, qhov hloov ceev thiab ntawm qhov tsis kam ntawm transistors yog cov cim tseem ceeb. Rau kev siv hluav taws xob tsawg, MOSFETs me xws li 2N7002 lossis IRLZ44N tuaj yeem xaiv. Rau kev siv hluav taws xob siab, lub zog siab MOSFETs lossis IGBTs xws li IRFP460 lossis IRG4BC30K tuaj yeem xaiv.

Kev tswj fais fab
Hauv kev tswj hluav taws xob hluav taws xob, nws yog qhov tsim nyog los xaiv cov transistors uas tsis tshua muaj kev ua haujlwm thiab kev ua haujlwm siab. Rau DC-DC converters, high-efficiency N-channel MOSFETs xws li IRF540N lossis Si2302DS tuaj yeem xaiv. Rau cov neeg tswj xyuas kab, BJTs xws li TIP31C lossis TIP42C tuaj yeem xaiv.

tiv thaiv Circuit Court
Hauv kev tiv thaiv circuits, nws yog ib qho tsim nyog los xaiv cov transistors uas tuaj yeem tiv taus qhov hluav taws xob siab thiab siab tam sim no. Rau overcurrent tiv thaiv circuits, siab tam sim no NPN BJTs xws li 2N3055 tuaj yeem xaiv. Rau overvoltage tiv thaiv circuits, high-voltage MOSFETs xws li IRF840 tuaj yeem xaiv.

Pom zoo cov qauv Transistor
2N2222
Type: NPE BJT
Daim ntawv thov: Universal hloov thiab amplifier
Nta: Siab nce, siab zaus teb

2N3906
Type: PNP BJT
Daim ntawv thov: Universal hloov thiab amplifier
Nta: Siab nce, suab nrov tsawg

IRF 540 N
Hom: N-channel MOSFET
Daim ntawv thov: Switching fais fab mov, hluav taws xob tsheb
Nta: Tsawg ntawm kev tiv thaiv, siab tam sim no

IRLZ44 N
Hom: N-channel MOSFET
Daim ntawv thov: DC-DC converters, hloov cov khoom siv fais fab
Nta: Tsawg ntawm kev ua haujlwm, kev ua haujlwm siab

TSI 31C
Type: NPE BJT
Daim ntawv thov: Linear regulator, hwj chim amplifier
Nta: High tam sim no, siab zog

PEB 199
Type: NPE BJT
Daim ntawv thov: RF amplifier
Nta: Cov yam ntxwv siab zaus, tsis tshua muaj suab nrov

SIB 460
Hom: N-channel MOSFET
Daim ntawv thov: siab zog hloov, inverter
Nta: High voltage, siab tam sim no

IRG4BC 30 K
Qauv: IGBT
Daim ntawv thov: hluav taws xob tsheb, inverter
Nta: Siab zog, siab efficiency

 

https://www.trrsemicon.com/transistor/mosfet-irlml0100trpbf-sot-23.html